This goes credit to Brad in the gamefaqs boards:

Here’s the cameos so far that can be seen:


Li Mei - http://www.mksecrets.net/images/mk9/screenshot017.jpg

Kenshi & Daegon - http://www.mksecrets.net/images/mk9/screenshot014.jpg

Kira - http://www.mksecrets.net/images/mk9/screenshot018.jpg

Reiko & Daegon - http://www.mksecrets.net/images/mk9/screenshot016.jpg

Shang Tsung - http://www.mksecrets.net/images/mk9/screenshot015.jpg

shang tsung looks pimped!